circle.yml

machine:
  ruby:
    version: 2.1.7
  java:  # see <https://github.com/svenkreiss/html5validator#integration-with-circleci>
    version: oraclejdk8
  environment:
    GITHUB_PAGES_RUBY_VERSION: $(curl -s https://raw.githubusercontent.com/github/pages-gem/master/.ruby-version | cut -d '-' -f 1)

dependencies:
  cache_directories:
    - /home/ubuntu/.rvm/gems/
  post:
    - if [[ ! -e /home/ubuntu/.rvm/gems/ruby-$GITHUB_PAGES_RUBY_VERSION/gems/github-pages-* ]]; then gem install github-pages --no-ri --no-rdoc; fi
    - jekyll --version  # print it out
    - sudo pip install html5validator

test:
  override:
    - grep version circle.yml | grep $GITHUB_PAGES_RUBY_VERSION  # Circle doesn't support interpolation of ruby version, so at least double-check we specified the proper one
    - jekyll doctor
    - jekyll build
    - grep "css/main.css" _site/index.html  # smoke test that something was actually compiled
    - html5validator --root _site